Starter for internal-combustion engines



L. B. HASBROUCK.

STAHTER FOR INTERNAL COMBUSTION ENGINES.

Patented Jan. (3

STARTER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

ratemec Jan. a, teen.

Application filed'August 24, 1916. Serial No. 116,655.

To all whom it may concern.

Be it known that I, LOUIS BENNETT Has- BROUCK, a citizen of the UnitedStates, and resident of Elmira, in the county of Chemung and State ofNew York, have invented certain new and useful Improvements in Startersfor Internal-Combustion Engines, of which the following is aspecification.

My invention relates to starters for internal combustion engines.

The principal object of my invention is to provide a starter forinternal combustion engines that is solely automatic in operation.

The second object of the invention is to provide an automatic starterthat may be used in conjunction with any type of gasolene engine.

Another object of the invention is to provide a starter of the abovementioned character which may be easily disassembled to apply a new partshould one of the parts become broken.

An additional object is to provide a mechanical starter which is simplein construction, consists of few parts and is inexpensive to manufactureand which may be placed on the market at a comparatively low cost.

The above and other objects and advantages of my device will fullyappear from the following description taken in connection with theaccompanying drawings and be explicitly defined in the appended claims.

On the drawings, 1

Figure 1 is a view of an internal c0mbus-' tion engine having myimproved starterapplied thereto.

Fig. 2 is a side elevation of my improved starter.

Fig. 3 is a view showing certain parts of the invention. Y I

Fig. 4 is a vertical sectional view through the operating parts of thestarter.

Fig. 5 is a front elevation showing the driving gear of. the starterdisengaged from the fly wheel of the internal combustion en- Fig. 6 is alike view showing the driving gear engaged with the fly wheel of theinternal combustion engine.

Like characters of reference indicate like parts in all the views.

.Referring to the drawings, the numeral 5 designates an internalcombustion engine which may be ofany type and the numeral 6 designatesthe fly wheel of the is keyed a gear 10. This gear 10 is cut awayat oneedge to provide an annular shoulder 11. Positioned on the gear 10 andabutting the shoulder 11 is a friction ring 12 having teeth 13 therein.

Loosely mounted on the inner end of the sleeve 9 is a bracket 11 whichhas formed integraltherewith a bearing 15. Mounted in the bearing 15 isa stub shaft 16 having an enlarged end 17 which terminates in a head 18.Mounted on the'enlarged end of. the shaft 15 is a gear 19 having arecess 20 in its outer face which accommodates the head '18. This gear19 is always in mesh with the gear 10 and is adapted to be thrown intoand out of engagement with the fly wheel 6. A collar 21 is threaded uponthe inner end of the sleeve 9 andbears against the bracket 14 andretains the same in position. 1

Pivotally mounted on the bracket 14 at the point of juncture with thebearing 15 is a locking pawl 22 which'is substantially V- shaped and hasan outwardly extending lug 23 formed at one end thereof. This lockingpawl is normally engaged in one of the notches between the teeth 13 ofthe ring 12.

Secured to the motor 7 by means of screws or the like is a plate 2-} onwhich there is an arm 25 having a cam surface 26' formed thereon, uponwhich the lug 23 rides. The arm 25 is provided with a recess 27 whichaccommodates an cxpansible spring 28. A

.10 which in'turn will rotate thegear 19 as indicated by the arrows.Duringthe rotationof these gears, the engagement of'the pawl 22 with thedisk 12-will cause the is supported in the position bracket-14 tobeswung tothe position shown in Fig. 6 which will throw the gear 19 intoengagement with the teeth on the fly wheel 6. As this bracket 1-1 movestoward the fly wheel 6, the lug 23 moves upon the cam surface 26 whichwill throw the pawl 22 out of engagement with the teeth 13, of thefriction ring 12. After the engine has started the gear 19 is thrown outof engagement with the fly wheel owing to the fact that the fly wheel ismoving at a much greater rate of speed than the motor 7 which will throwthe bracket 1% to its normal position and the pawl 23 will be rocked atthe same time and engaged in one of the notches in the ring 12. In orderto prevent the bracket 14 from moving past the center of gravity on itsoutward movement, 2'. e., when the gear '19 is being disengaged from thefly wheel 6, bracket 14: is formed with a lug 30 which abuts a lug 31formed on the plate 24.

Having described the preferred embodiment of my invention, I desire itunderstood that the disclosure shown is illustrative only I and that theinvention can be modified and claims.

What I claim is:

1. A starter for internal combustion engines comprising, in combinationwith a rotating element of the engine, a shaft, a gear mounted on theshaft, a bracket loosely mounted on said shaft, a second gear carried bysaid bracket and meshing with the first-mentioned gearand adapted-tomesh with said rotating element, and automatically operated means alsomounted on the shaft whereby said bracket may be locked to said shaft tocause the bracket to be swung toward said rotating element to mesh saidsecond-gear therewith to rotate the same.

2. A starter for internal combustion engines comprising, in combinationwith a toothed fly wheel, a shaft, a bracket loosely mounted on theshaft, a gear carried by the bracket adapted to mesh with the fly wheel,a second gear fixed to said shaft and meshing with the first mentionedgear, a toothed disk rotatable with the shaft, a pawl pivotally mountedupon said bracket and normally engaged with the disk, means forreleasing the pawl from the disk when the first mentioned gear isbrought into mesh with the fly wheel, and means for disengaging saidgear from the fly wheel.

3. In a starter of the character described, a rotor, a bracket looselymounted thereon, a driving element carried by the bracket and adapted tobe operatively engaged with the fly wheel of an engine, a'second drivingelement fixedto rotate with the rotor and operatively engaged with thefirst named driving element, means for normally retaining the bracket inan inoperative position and means rendering the first mentioned meansinoperative to permit the bracket to move toward the fly wheel to engagethe first mentioned driving element therewith, upon the rota tion of therotor.

4. In an engine starter, a rotor, a bracket loosely mounted thereon, adriving element carried thereby and adapted to be operatively connectedwith the fly wheel of the engine, means operated by the rotor forrotating the driving element and swinging the bracket toward the flywheel to cause the driving element to be operatively connected with thesame, and resilient means cooperating with said bracket for normallyretaining the bracket in a position where the drivingelement willbedisconnected from the fly wheel.

5. In an engine starter, a rotor, a normally stationary member mountedthereon and capable of swinging movement, a gear fixed to rotate withthe rotor adapted to rotate the fly wheel of the engine, and normallydisengaged therefrom, a second gear carried 'by said member and meshingwith the first named gear, a pivoted locking member for engagement withone of the gears to cause said member to swing toward the fly wheel andengage one ofthe gears therewith, the locking member being disengagedfrom the gear upon the completion of the movement of said member towardthe fly wheel.

6. In an internal combustion engine starter, a rotor, a movable bracketmountedthereon and normally stationary, a driving element carriedthereby, a second driving element operatively connected therewith androtated by the rotor, and a pawl pivotally mounted upon the bracket andnormally op-' eratively connected with one of the driving elements tocause the bracket to move toward the fly wheel of the engine upon therotation of the rotor to engage the other driving element with the flywheel, the pawl being moved to inoperative position when the bracket hascompleted its movement toward the fly wheel.

7. In an internal combustion engine starter, a rotor, a movable bracketmounted thereon and normally stationary, a driving element carriedthereby, a second driving 115 element operatively connected therewithand rotated by the rotor, a pawl carried by the movable bracket, saidpawl being adapted to normally lock said movable bracket with respect tothe rotor, and acam-way for 120 rocking the pawl to render the sameinoperative when the bracket has completed its movement toward the flywheel.

8. In an internal combustion engine starter, a rotor, abracket looselymounted 5 on the shaft of the same, a gear carried by the bracket, :1second gear fixed to rotate with said shaft and meshing with the firstnamed gear, a ring fixed to rotate with the second named gear, and amember normally 130 operatively connecting the bracket and ring tocausethe former to move toward the fly wheel of the engine and engagethe first named gear therewith, said member being disengaged from thering prior to the engagement of the first named gear with the fordisengaging the member from the ring prior to the engagement of thefirst named gear with the fly wheel.

10. In an internal combustion engine starter, a shaft, a bracket mountedon the shaft, a gear carried thereby, a second gear fixed torotate withthe shaft and meshing with the first named gear, a ring frictionallyengaged with the shaft and adapted to ro-' tate therewith and havingnotches therein, a

pivoted pawl carried by the bracket and normally engaged in one of-thenotches in the ring to cause the bracket to move toward the fly wheel ofthe engine and engage the first named gear'therewith, and means fordisengaging the pawl from the ring upon the completion of each movementof the bracket.

11. In an internal combustion engine I starter, a shaft, a bracketmounted on the shaft, a gear carried thereby, a second gear fixed torotate with the shaft and meshing with the first named gear, a ringfrictionally engaged with the shaft and adapted to rotate therewith andhaving notches therein, a pivoted pawl carried by the bracket andnormally engaged in one of the notches in the ring to cause the bracketto move toward the fly wheel of'the engine and engage the first namedgear therewith, and a cam-way over which the pawl moves for disengagingthe same from the ring upon the completion of the movement of thebracket toward the fly wheel, said cam-way rocking" the pawl intoengagement with one of'the notches in the ring upon the moving of thebracket away from the fly wheel. I

12. "In an internal combustion engine starter, a shaft, a bracketmounted on the shaft, a gear carried thereby, a second gear fixed torotate with the shaft and meshing with the first named gear, aringfrictionally engaged with-the shaft and adapted to rotate therewith andhaving notches therein, a pivoted pawl carried by the bracket andnormally engaged in one of the notches in, the ring to cause'the bracketto move toward the fiy wheel of the engine and engage the first'namedgear therewith, means for disengaging the pawl from the ring upon thecompletion of-each movement of the bracket, and a spring urged lugnormallysupporting the bracket against movement in one direction.

LOUIS BENNETT HASBROUCK,

